This watch is subject to
stopwatch timing, but has not yet been
put on the MicroSet device. The PSR 10 was originally billed as being a 10 SPY
watch, but this soon became something of an in-joke amongst HAQ collectors as
the 196 kHz movement rapidly slipped off-spec..

I have two PSR 10s and will probably sell whichever turns
out to be less accurate over a substantial period of testing. Many more results
are needed before that determination can be made.